Skip Navigation Links weather.gov 
NOAA logo-Select to go to the NOAA homepage NOAA's National Weather Service   Select to go to the NWS homepage
Storm Prediction Center
navigation bar left  
  navigation bar end cap


 
USA.gov is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.

Mesoscale Discussion 677
< Previous MD         Next MD >
MD 677 graphic

   MESOSCALE DISCUSSION 0677
   NWS STORM PREDICTION CENTER NORMAN OK
   0902 PM CDT SAT MAY 16 2015

   AREAS AFFECTED...PORTIONS OF N-CNTRL TX SWWD TO THE EDWARDS PLATEAU

   CONCERNING...TORNADO WATCH 179...

   VALID 170202Z - 170300Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 179 CONTINUES.

   SUMMARY...MAINLY A LARGE HAIL AND DAMAGING WIND THREAT CONTINUES
   ACROSS WW 179. HOWEVER...AN ISOLATED TORNADO CANNOT BE RULED OUT.

   DISCUSSION...GENERALLY DISCRETE SUPERCELLS EXTENDING FROM WRN N TX
   SWWD TO THE EDWARDS PLATEAU HAVE A HISTORY OF PRODUCING ISOLATED
   INSTANCES OF LARGE HAIL AND DAMAGING WINDS. THE THERMODYNAMIC
   PROFILE...EVIDENCED BY THE 00Z SOUNDING FROM FWD...REMAINS VERY
   FAVORABLE FOR CONTINUED MAINTENANCE OF THIS CONVECTION AS IT MOVES
   EWD. AMPLE LOW-LEVEL SHEAR...EVIDENCED BY THE VWP AT KFWS...ALSO
   SUGGESTS AN ISOLATED TORNADO REMAINS POSSIBLE ACROSS GENERALLY THE
   NORTHERN HALF OF TORNADO WATCH 179. FURTHER S ACROSS THE EDWARDS
   PLATEAU...LOW-LEVEL WINDS ARE MORE UNIDIRECTIONAL WITH STRONGER SWLY
   FLOW ALOFT...SUGGESTING MAINLY A LARGE HAIL/DAMAGING WIND THREAT.
   SOME CONVECTION HAS RECENTLY BECOME SEVERE TO THE SW OF SAN ANGELO.
   IF THESE THUNDERSTORMS MAINTAIN THEIR INTENSITY...THEN A LOCAL
   EXTENSION SWD OF WW 179...OR A NEW WATCH...MAY BE NEEDED.

   ..GLEASON.. 05/17/2015


   ATTN...WFO...FWD...SJT...MAF...

   LAT...LON   33349962 33329838 33469787 33719783 33659635 31479857
               30310076 30300162 30870220 31190145 33349962 

Top/All Mesoscale Discussions/Forecast Products/Home
Weather Topics:
Watches, Mesoscale Discussions, Outlooks, Fire Weather, All Products, Contact Us

NOAA / National Weather Service
National Centers for Environmental Prediction
Storm Prediction Center
120 David L. Boren Blvd.
Norman, OK 73072 U.S.A.
spc.feedback@noaa.gov
Page last modified: May 17, 2015
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities